Newbie trouble

Hi, I'm a newbie, and a while ago I tried to get people to check out my art in the showcase forum. Well guess what, the link to my blog didn't work. That topic has three replies, all by me, in an attempt to fix the link, which falls flat. Is there any way I can delete that post?

2. How to make your name link to your blog:
Go into your dashboard -> Users -> Personal Settings -> then scroll down to 'Account Details'. In the spot where it says 'website' fill in the address of your blog and save the changes.
Now... when you comment here and on other blogs, your name will link to your blog. If you do this before you post your request for help, it will allow forum volunteers to be able to help you quicker since they won't have to ask you for a link and wait until you come back to post one.

No you can't delete it. Only Moderators and Staff can edit, delete or close threads. But not to worry as I went into that thread and posted the link for you.

Here's how to link your username to your blog. Dashboard -> Users -> Personal Settings -> then scroll down to Account Details. Then scroll down to where it says ‘Primary Blog‘ select the URL for your primary wordpress.com blog and then save changes.

Now every time you sign into the forum we can all click on your username and your blog will be linked to it. And every time you leave a comment on a blog your username can be likewise clicked and your blog can be instantly located.

Just to be certain, are you using the correct link to your blog:http://sabinafelice.wordpress.com/
(that is, you are not using the title you have given the blog as your link?
or you are trying to link to a different blog?)